Signet, signal, symbol
Subtitle: handbook of international signs
By: by Walter Diethelm in collaboration withDr. Marion Diethelm.
Contributors: Diethelm, Marion.
Edition: 4th ed.
Publisher: ABC Verlag
Published: 1984
Place of publication: Zurich
Language: mul
Number of pages: 227
Notes: Parallel text in English, French and German.